Chopra and Meghan have been close friends since they met in 2016 at a Women in Television dinner, (Instagram)

Chopra was one of the many celebrities who attended Prince Harry and Meghan’s wedding in May and now that her close friend is set to take a trip down the aisle, many are hoping the royal couple will return the favour.

But is the Duchess of Sussex even allowed to kick it with the bridal party?

According to one royal reporter, the answer is 'yes' – but it's complicated.

Chopra was one of the many celebrities who attended Prince Harry and Meghan’s wedding in May. (Getty)

"There is no protocol that dictates whether an adult female member of the British Royal Family can take on the role of a bridesmaid or maid of honour at a non-royal's wedding," royal expert Omid Scobie told Cosmopolitan.com.

"However, it is an unlikely scenario for one simple reason: A female royal would not be expected to walk behind a 'commoner’.' This is why in the past we saw Pippa Middleton as Duchess Kate’s maid of honour, but when Pippa got married Kate read a prayer."

Nick Jonas reportedly proposed to Priyanka Chopra last month when the two were holidaying in London where they also met up with Meghan Markle and Prince Harry. (Getty)

When it comes to British royal weddings in particular, adult bridesmaids are rarely a part of the ceremony – Pippa’s role in Kate and William's wedding was actually an exception.

Beyond the unwritten traditions, there's the issue of stealing the limelight, Scobie said.

When it comes to British royal weddings in particular, adult bridesmaids are rarely a part of the ceremony. (Getty)

"There’s also the risk of taking all the attention off the bride herself! In June, all eyes were on Sweden’s Princess Madeleine instead of her close childhood friend getting married when she served as a bridesmaid."

However Scobie suggested that if Meghan is invited by Chopra to walk down the aisle on her big day, the palace won't stand in her way.

Scobie suggested that if Meghan is invited by Chopra to walk down the aisle on her big day, the palace won't stand in her way. (Getty)

"Should a female member of the Royal Family choose to take on a bridal party role at a friend's wedding, it would be her own decision.

"There’s no rule that wouldn’t allow this and she certainly wouldn’t need permission or guidance from Palace aides."

There's a good chance we may see the Duchess in full bridesmaid getup on her friend's big day. (Getty)

So there you go! There's a good chance we may see the Duchess in full bridesmaid getup on her friend's big day.